Notch finder for power setworks



Oct. 26, 1925.

1,604,878 c. H. CARMER v NOTCH FINDER FOR POWER SETWORKS Filed July :5, 1926 2 Sheets-Sheet 1 Oct. 26 1926. 1,604,878

" c. H. CARMER NOTCH FINDER FOR POWER SETWORKS Filed July 5, 1926 2 Sheets-Shoat 2 rrsu smrssi Parana our12cF121.v

onnnnns n.- CARMER; or oLnAnivEw YORK, ASSIGNOR TO CLARK snornnus' coivr'- PANY, F omen, NEW Yours-n CORPORATION or NEW YORK.

NGTGHT'I'ND'ER FOR POWER SET'WORKSI This invention relates to aninipovement ln'n'otch finders for power set works;

The object of the invention istoprovidein the quadrant of the set works quickly when changing from one thickness to another, within the limitations of theset rks This invention enables the operator to change quickly to the thickness of. lumber desiredto be cutand' insures ofan accurate adjustment of the v set works to saw the lumber of this particular size.

To accomplish theseiobj ects' and to obviate the difii culties encountered in 'tlieusejof the presentsetworks, a plate is attache'd'to one side of the notched quadrant, which regu lates the movement o'f' the set lever, which plate has a plurality of holescorrespondin'g to the notches in the' quadrant therein for receiving pins; A bracket" is attached to the side ofth'e set-lever and carries dogs inposi tion to engage the pins in the plate to lifinit the extent' of throw of the setlever. These dogs are pivoted in a suitable" manner in the bracket and they are provided with enlarged holes 'therethrough' receiving a pin, smaller in size than the diameter of the hole in order to enable the dogsto rock on their pivots so as to allow the set lever to 'be moved back or forward withoutnecessitab ing the lifting ofthe dogs on the backward movement of the set leverbut on the, for 35 ward movement it is necessary} to liftthe dogs or raise the pins.

In the accompanying drawings:

Fig. 1 is a side elevation'ofthe power set works, mounted on the saw mill carriage;

Fig. 2 is an enlarged side elevation oithe set leverand quadrant therefor;

Fig; 3 is a top plan View thereof partly in section;

Fig. l is a vertical sectional view through therquadrant, showing the set lever inside elevation; and

Fig. is a vertical sectional view through the supportingbracket for the dogs.

The nu1neral=l indicates'a saw mill carriage upon which is located a power set WOI'kSlIlCliCELbBd generally by the numeral controls the movement thereof and theaction-of the power-cylinders lto move the set shaft 5 for" controlling theextent of movement of the sawmill dogs and the regulationof theth-ickness o-fthe lumber to be out; This power set-worksinay be used to set out-lumberre be cut in any of the stand ard si-Ze s,- as" follo'wsz-one inch one-and a fourth inch; one and aha lf inch; one and three fourths inchytwo 'inehes g two and a half inches; three or' four inches It is desirable to provide "an accurate ad justinent of the setlever 3 so as to obtain a precise cutoff-lumber te with in a thirtysecond of an inch in thickness. For this urpose, the setleVer S'has -apaWl 6 p'ivoted thereto for engagement with the teeth 7 Of aquadrant 8', as clearly shownin Fig; 2. A lock-latch 9,-also pivoted to the set lever 3, bears upon the inc linedupper edge-10 of this pawl 6 'to" lock the pawl in engagement with the teeth 7 of the quadrant. Springs 11 and l2serve" to hold the leck latch in engagenient with thepaWl andprevent the pawl from sli ping outof engagement with the quadrant. I

Secured to one sideof the'quadrant 8 andcarried by; the framework-of the set works 2', is aplate l3,-provided with a'plurality of holes '14: thereth-rough; for receiving pins 15, as shown in the drawings; I A graduated scale plate 16 is secured to oneside of the plate 13, as shown in Figs- 3 and 4.

A bracket 17 is secured to one side of the setlever Sby 1116311801? set screws 18, as shown in Fig. 4, and this bracket 17 has the arms 19 and 20 thereof extending, upwardly in a spaced apart relation. Extending through the arms 19 and 20 is a pin 21 formingthe pivotal support for dogs 22, having the front ends '23 thereof extending upward- 1y, as indicated in Fig. 5- These dogs 22 are positioned between the ar1ns19 and 20 and have the rear ends thereofprovidedwith than the diameter-of theoriiicesfit. EX-

tending'upwardly the arm 19'is a'sup porting bar 26, which carries a pointer 27 points in the plate 13 ata distance apart equal to the thickness which it is desired to cut the lumber. It is to be noted that the holes 14 correspond with the teeth 7 of the quadrant, and there are the same number of holes as there are teeth in this quadrant, within the same extent thereof. With the pins 15 placed in the proper holes 14 and with the set leverin the position shown in Fig. 2, if the thickness to be cut is at the pin third from the left of Fig. 2, the operator pushes the first two pins up, then moves the set lever 3 .to the right, after having moved the locklatch 9 out of engagement with the pawl 6, allowing said pawl to move out of engagement with the teeth 7, and when this movement of the set lever 3 has been continued until the corresponding dog 22 engages'the third pin 15, the set lever is released, allowing the pawl 6 to again engage the teeth of the quadrant and be held in position by the lock-latch 9, while thus setting the set works in the proper position to cut the lumber of the desired thick ness.

Instead of lifting the pins 15 so as to allow the pawls 22 to pass thereunder, the operator may move the rear ends of these pawls up so that the front ends thereof will pass under the pins 15 to allow the proper setting of the set works on the forward movement of the set lever, but on the backward movement the pawls 22 automatically pass the pins 15.

Upon releasing of the dogs, they will again drop to the position shown in Fig. 5 where they will engage the next succeeding pin in the movement of the set lever. In order to move the set lever back into a further and next succeeding position, all that is necessary is to disengage the pawl 6, the dogs 22 being allowed to move about their pivot pin 21, as the backs of the ends thereof engage the pins 15, until the set lever hasbeen moved back to its proper set position with the dogs engaging theiback of the proper pin 15. The size of the holes 24 and pin 2-5 regulate this pivotal move ment, and due to the position of the pivot pin 21 the dogs will always move down again in position to engage the pins 15.

I claim 1. In a device of the character described, the combination with a set lever, and quadrant therefor, of a plate extending laterally from said quadrant and having a plurality of holes therein, pins extending into the holes, and means connected with the set lever for engaging the pins.

2. In a device of the character described, the combination with a set lever, of a plate associated with said lever and having a plurality of holes therein, a pin extending into one of the holes, a bracket carried by the set lever, and a pawl carried by said bracket for engaging the pin.

3. In a device of the character described, the combination with a set lever, of a plate associated with said lever and having a plurality of holes therein, pins extending into the holes, a bracket carried by the set lever,

and pawls pivotally mounted in the bracket and movable into and out of position for engaging the pins.

a. In a device of the character described, the combination with a set lever and quadrant therefor, of a plate extending laterally from said quadrant and having a plurality of holes therein, pins extending into the holes and means connected with the lever and movable into and out of position for engaging the pins.

5. In a device of the character described, the combination with a set lever and quadrant therefor, of a plate extending laterally from said quadrant and having a plurality of holes therein, pins extending outwardly from the holes and removably positioned therein, a bracket carried by the set lever, and means carried by said bracket movable into and out of position for engaging the pins.

6. In a device of the character described, the combination with a set lever and quad rant therefor, of a plate extending laterally from said quadrant and having a plurality of holes therein, pins extending outwardly from the holes and removably positioned therein, a bracket carried by the set lever, and dogs pivotally mounted in the bracket for movement into and out of position for engaging the pins and limiting the extent of movement of the set lever.

7. In a device of the character described, the combination with a set lever and quadrant therefor, of a plate extending laterally from said quadrant and having a plurality of holes therein pins extending outwardly from the holes and removably positioned therein, a bracket carried by the set lever, and dogs pivotally mounted in the bracket for movement into and out of position for engaging the pins and limiting the extent of movement of the set lever, said dogs having enlarged openings therein at one side of the pivots therefor, and a pin extending into the openings and connected with the bracket for limiting the pivotal movement of the dogs.

8. The combination with a set lever, a notched quadrant associated therewith, and a pawl carried'by the set lever in position to engage the notched quadrant, of a plate extending laterally from the quadrant and having a plurality of holes therein, pins removably extending through the holes, a

bracket carried by the set lever, dogs pivotally mounted within said bracket and having the ends thereof projecting upwardly in position to engage the pins, a pivot pin for the dogs, said dogs having enlarged openings therein eccentrically positioned relative to the pivot pin, a pin extending into said openings, of a diameter less than that of the openings, for limiting the pivotal movement of the dogs, a graduated scale connected with a plate and a pointer extendingv CHARLES H. CARMER. 

